import { QueryService } from '@narik/app-core';
import { DataInfo, NarikDataSource, FilterItems, PagingParameters, DataProviderService } from '@narik/infrastructure';
import { Observable } from 'rxjs';
import { Subject } from 'rxjs';
import { CollectionViewer, DataSource } from '@angular/cdk/collections';
import { MatPaginator } from '@angular/material/paginator';
import { MatSort } from '@angular/material/sort';
export declare class MatLazyDataSource<T> implements DataSource<T>, NarikDataSource<T> {
    private queryService;
    private dataInfoGetter;
    private dataProviderService;
    private dataSubject;
    private loadingSubject;
    currentData: T[];
    _paginator: MatPaginator | null;
    _sort: MatSort | null;
    _filterSubject: Subject<FilterItems>;
    _filter: FilterItems;
    set filter(value: FilterItems);
    get filter(): FilterItems;
    set filterSubject(value: Subject<FilterItems>);
    get filterSubject(): Subject<FilterItems>;
    set sort(value: MatSort | null);
    get sort(): MatSort | null;
    set paginator(value: MatPaginator | null);
    get paginator(): MatPaginator | null;
    get dataObservable(): Observable<T[]>;
    get loadingObservable(): Observable<boolean>;
    constructor(queryService: QueryService<T>, dataInfoGetter: () => DataInfo, dataProviderService?: DataProviderService);
    loadData(remoteDataParams?: PagingParameters): void;
    connect(collectionViewer: CollectionViewer): Observable<T[]>;
    disconnect(collectionViewer: CollectionViewer): void;
}